noise cancellation

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    How to Reduce Noise When Measuring 20MHz Frequency Using Relay

    Hello everyone, I'm currently making a test machine for testing (voltage, frequency) PCBs. There are 5 test points on PCB where I need to measure frequency 20MHz. So, I'm using relay to switch around test point and connect to the probe of my oscilloscope (Keysight DSOX1202a). I've found out that...
  2. Electronic stethoscope ambient noise suppression

    Hi all, I'm trying to implement ambient noise suppression using dual mic in stethoscope, I want my primary mic close to chest piece hearing heart sounds and the secondary mic for listening to ambient noise. I looked into TI far field noise suppression technology, but not available for...
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